2004年6月
Dynamic magnetic properties of epitaxial MnAs thin films studied by spin-wave Brillouin scattering
JOURNAL OF APPLIED PHYSICS
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- 巻
- 95
- 号
- 11
- 開始ページ
- 6619
- 終了ページ
- 6621
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.1682951
- 出版者・発行元
- AMER INST PHYSICS
Dynamic magnetic properties of epitaxial MnAs thin films are studied by means of Brillouin light scattering (BLS). The sharp spectral peaks of the inelastic BLS are observed in room temperature, which are attributed to surface spin waves indicating the long-wavelength collective behavior of ferromagnetic spins. The field dependence of the surface spin-wave frequency is strongly affected by an in-plane angle between the crystal axis and the external field direction in a GaAs(100)/MnAs(-1100) film, which originates from uniaxial magnetic anisotropy parallel to the MnAs[11-20] axis and the modified g value. Significant damping of the spin-wave BLS spectrum is observed with increasing excitation laser power, possibly due to thermal effects. (C) 2004 American Institute of Physics.
- リンク情報
- ID情報
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- DOI : 10.1063/1.1682951
- ISSN : 0021-8979
- Web of Science ID : WOS:000221657900036